All very interesting, none of it very surprising (certainly not to the archeologists, who study animal behavior), but what is interesting, is the picture choice chose with the article that is circulating around the internet.
I'm not faulting the picture, its pretty interesting in a We are the World type of picture, but why in the world show it with a murdering caveman who may have killed up to 40 people and thrown them in a deep hole?
I would have gone with one of these...
A traditional Frazetta piece of primeval will.
Or maybe Larry, Curly and Mo for a light touch.
Or even the poor bastard who had his head stove in!
The internet is giant swirl of noise and color...keep up the pace science people!